Well, when I first upgraded to 1.1.3 I was stuck at the activation screen. If you upgrade through iTunes it upgrades the baseband and thus no jailbreak. After that I did restore to 1.1.1, upgrade to 1.1.2 w/ jailbreak then ran Nate True's jailbreak/upgrade to 1.1.3 so I have both the upgraded baseband AND it's jailbroken.

Both ways, using the stock 1.1.3 and the jailbroken 1.1.3, the HyperCard SIM did not work. It still registered no signal.

navalynt, you do realize with a 3.9BL, that if you fully upgrade to 1.1.3 then downgrade to like 1.1.1 or 1.1.2, you HAVE to downgrade the baseband inorder to get your phone functions working again right?

if all u did was downgrade and kept the same baseband then yes, ur phone wont make calls and such. but, if you do what i mentioned. you would be okay as grass.

but yah i keep hearing the same thing, *sim no longer works with 1.1.3 baseband